LG M4214T Owners Manual - Page 32
The audio function does not work., Screen color is abnormal., The operation does not work normally - touch
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Troubleshooting The audio function does not work. ● No sound? • See if the audio cable is connected properly. • Adjust the volume. • See if the sound is set properly. ● Sound is too dull. • Select the appropriate equalize sound. ● Sound is too low. • Adjust the volume. Screen color is abnormal. ● S creen has poor color resolution (16 colors). • Set the number of colors to more than 24 bits (true color) Select Control Panel - Display - Settings - Color Table menu in Windows. ● S creen color is unstable or mono-colored. • Check the connection status of the signal cable. Or, re-insert the PC video card. ● D o black spots appear on the screen? • Several pixels (red, green, white or black color) may appear on the screen, which can be attributable to the unique characteristics of the LCD panel. It is not a malfunction of the LCD. The operation does not work normally. ● The power suddenly turned off. • Is the sleep timer set? • Check the power control settings. Power interrupted. • "CAUTION! FAN STOP!" If the power is turned off after this message appears, it means that the fan is out of order. In this case, contact your local service center. ● Touch operation does not work properly. • Check USB cable between PC and Touch Monitor. • Calibrate Touch monitor with PC. ● Touch USB Device Recognition Error. • Disconnet and connect the touch USB cable from PC. • Disconnect other USB devices and Connect the touch USB cable only to PC. 32